Polygala × dalmaisiana
sweet pea shrub
A bushy evergreen shrub to 1.5m, with dark green, ovate leaves and terminal racemes of pea-like, reddish-purple flowers 2.5cm long, in summer and autumn
Size
Ultimate height
1–1.5 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple | Green | ||
| Autumn | Purple | Green | ||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
West–facing or East–facing or South–facing
Exposure
Sheltered Hardiness
H1CBotanical details
- Family
- Polygalaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Genus
Polygala can be annuals, evergreen perennials or shrubs, with simple leaves and racemes of somewhat pea-shaped flowers
- Name status
Correct
How to grow
Cultivation
Grow in a conservatory or greenhouse with a minimum temperature of 5-7°C (41-45°F) or in a container for summer interest outdoors. Use a peat-free compost in containers. Water freely during growing season and sparingly in winter. Apply a balanced liquid fertiliser monthly when in growth
Propagation
Propagate by seed in spring in a temperature of 15°C (59°F). Take softwood cuttings in early summer or semi-ripe cuttings in mid-late summer
Suggested planting locations and garden types
- City and courtyard gardens
- Patio and container plants
Pruning
Pests
Glasshouse whitefly and aphids may be a problem under glass
Diseases
Generally disease-free
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